One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of figuring out when it's the best time to plant iceberg lettuce is to look at the USDA zone info for Norwalk.

Planting Calendar for Iceberg lettuce

Frost tolerance for iceberg lettuce:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Iceberg lettuce are barely cold tolerant which tells us that you can start planting them slightly earlier than more sensitive plants.

The earliest that you can plant iceberg lettuce in Norwalk is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant iceberg lettuce and expect a good harvest is probably August. If you wait any later than that and your iceberg lettuce may not have a chance to really do well. You can get started a little bit earlier by starting your iceberg lettuce indoors.

Last Frost Date

On average the last frost is on April 15 in Norwalk. In the coldest months of winter you should expect an average low temperature of 0°F.

It's important to remember that USDA zone info for Norwalk is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Norwalk it frosts late in the year after April 15 so just be sure to be ready to cover your iceberg lettuce if you have one of those late frosts.

USDA Zone Info for Norwalk

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Norwalk

You may be interested in your other planting guides for Norwalk.